>> president obama plain pizza delivery man and nevada. near las vegas. he played-pizza delivery man. he is expected to take a cautious approach. not wanting to... compromise his current lead over mitt romney. as this stage is being set. both men have been hunkered down behind closed doors getting ready. but mcgraw me his paid speaks to us. >> we're just getting ready for the format, the queue, and q&a, the moderator. and how they're going to be patrolling the debate. >>catherine: with mock debates and president obama has john kerry. >> president is a great president and is not have the time. all we hear about is that how much ms. romney has been practicing, practicing, wherever he goes. >>catherine: for what it is worth they overwhelmingly believe that president obama will come out ahead. if the pressure was already not enough the latest poll sewing that it is still a tight race card-showing. >> this first lady. >> this is going to be even closer to understand that. >> the first of three debates will be on domestic policy. the big emphasis on the economy